ACPI: processor: factor out common _PDC settings

[safe/jmp/linux-2.6] / drivers / acpi / processor_idle.c

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 1f60ccb..d1676b1 100644 (file)
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -60,6 +60,8 @@
 #include <acpi/processor.h>
 #include <asm/processor.h>
 
+#define PREFIX "ACPI: "
+
 #define ACPI_PROCESSOR_CLASS            "processor"
 #define _COMPONENT              ACPI_PROCESSOR_COMPONENT
 ACPI_MODULE_NAME("processor_idle");
@@ -162,8 +164,9 @@ static void lapic_timer_check_state(int state, struct acpi_processor *pr,
                pr->power.timer_broadcast_on_state = state;
 }
 
-static void lapic_timer_propagate_broadcast(struct acpi_processor *pr)
+static void __lapic_timer_propagate_broadcast(void *arg)
 {
+       struct acpi_processor *pr = (struct acpi_processor *) arg;
        unsigned long reason;
 
        reason = pr->power.timer_broadcast_on_state < INT_MAX ?
@@ -172,6 +175,12 @@ static void lapic_timer_propagate_broadcast(struct acpi_processor *pr)
        clockevents_notify(reason, &pr->id);
 }
 
+static void lapic_timer_propagate_broadcast(struct acpi_processor *pr)
+{
+       smp_call_function_single(pr->id, __lapic_timer_propagate_broadcast,
+                                (void *)pr, 1);
+}
+
 /* Power(C) State timer broadcast control */
 static void lapic_timer_state_broadcast(struct acpi_processor *pr,
                                       struct acpi_processor_cx *cx,
@@ -515,7 +524,8 @@ static void acpi_processor_power_verify_c2(struct acpi_processor_cx *cx)
 static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
                                           struct acpi_processor_cx *cx)
 {
-       static int bm_check_flag;
+       static int bm_check_flag = -1;
+       static int bm_control_flag = -1;
 
 
        if (!cx->address)
@@ -545,12 +555,14 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
        }
 
        /* All the logic here assumes flags.bm_check is same across all CPUs */
-       if (!bm_check_flag) {
+       if (bm_check_flag == -1) {
                /* Determine whether bm_check is needed based on CPU  */
                acpi_processor_power_init_bm_check(&(pr->flags), pr->id);
                bm_check_flag = pr->flags.bm_check;
+               bm_control_flag = pr->flags.bm_control;
        } else {
                pr->flags.bm_check = bm_check_flag;
+               pr->flags.bm_control = bm_control_flag;
        }
 
        if (pr->flags.bm_check) {
@@ -675,6 +687,7 @@ static int acpi_processor_get_power_info(struct acpi_processor *pr)
        return 0;
 }
 
+#ifdef CONFIG_ACPI_PROCFS
 static int acpi_processor_power_seq_show(struct seq_file *seq, void *offset)
 {
        struct acpi_processor *pr = seq->private;
@@ -754,7 +767,7 @@ static const struct file_operations acpi_processor_power_fops = {
        .llseek = seq_lseek,
        .release = single_release,
 };
-
+#endif
 
 /**
  * acpi_idle_bm_check - checks if bus master activity was detected
@@ -1155,8 +1168,9 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
 {
        acpi_status status = 0;
        static int first_run;
+#ifdef CONFIG_ACPI_PROCFS
        struct proc_dir_entry *entry = NULL;
-       unsigned int i;
+#endif
 
        if (boot_option_idle_override)
                return 0;
@@ -1204,15 +1218,8 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
                acpi_processor_setup_cpuidle(pr);
                if (cpuidle_register_device(&pr->power.dev))
                        return -EIO;
-
-               printk(KERN_INFO PREFIX "CPU%d (power states:", pr->id);
-               for (i = 1; i <= pr->power.count; i++)
-                       if (pr->power.states[i].valid)
-                               printk(" C%d[C%d]", i,
-                                      pr->power.states[i].type);
-               printk(")\n");
        }
-
+#ifdef CONFIG_ACPI_PROCFS
        /* 'power' [R] */
        entry = proc_create_data(ACPI_PROCESSOR_FILE_POWER,
                                 S_IRUGO, acpi_device_dir(device),
@@ -1220,6 +1227,7 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
                                 acpi_driver_data(device));
        if (!entry)
                return -EIO;
+#endif
        return 0;
 }
 
@@ -1232,9 +1240,11 @@ int acpi_processor_power_exit(struct acpi_processor *pr,
        cpuidle_unregister_device(&pr->power.dev);
        pr->flags.power_setup_done = 0;
 
+#ifdef CONFIG_ACPI_PROCFS
        if (acpi_device_dir(device))
                remove_proc_entry(ACPI_PROCESSOR_FILE_POWER,
                                  acpi_device_dir(device));
+#endif
 
        return 0;
 }